Welder&#39;s mask



Aug. 6, 1957 T. D. TAPP 2,801,419

wELDER's MASK Filed Feb. 23, 1951 2 Sheets-Sheet l IN V EN TOR.

UQAM/frs Aug. e, 1957 T. D. TAPP 2,801,419

WELDER'S MASK 2 Sheets-Sheet 2 Filed Feb. 23, 1951 3 INVENToR.

United Sttes Patent WELDERS'MASK.

Y Truman, D.- Tpp, Detroit, Mich. Applicarionrebruary 23,1951, sri1-N0l.-z1z,z4o f Y 6 claims. (Cuz- 8) This invention relates to' ail welders mask.

' Inl'the'art'ofi arc welding, it is' very `comrnontforthe Welder to wear a Ymaskor Vshieldwhich covers f his 1 face; head and neck'- during the. welding-V opjeratirm,`

Thetshield 'is provided withV` aV transparentV window which per-mits to see the'work While=beingfprotected from the glare of the arc and spatteringfofhotmetal that might result fromthe weld; t

` This shield is commonly carriedby a=head2mountwhich consistsr ofi-an Iadjustable bandfthat surroundsf'the head ina substantially horizontal' plane and anl arch' band which goes over thehead to carry-some .ofi'the load. The shield ispivotally fastened to thel head mount so that the head-mount may` be moved from ani out-lofthe-way or clear position on,l the top Iof the headlv to anv operative position in front of the face.

In the-*pastv the locationlof the .shield withlrespectto the welderseyes has been controlled :by achin st-'rapin' the lower portion of the shieldfwhich-broughtthelshieldidown to a stop as it moved into the4 operative position. This has beenV a-source of annoyance to individual welding operators 4since the'` chin strap is: apt to cause chaiing-l and inconvenience when the.` mask.` is in place',` and alsol the viewing window. of: the shield does not always fall directly before the eyesI as it moves to position.V

It is an: object offthepresent invention Vto providea weldersl shield which has the head m'ountliso relatedto.

the shieldI as it moves. to. operativeposition that'itwill always `be irl-the' samelposition and'al'so may be2 individ# uallyadapted to the .needs of aparticularoperator;

These.` shields `areissued to. anVI operator' and used asy personal equipment until returned.' to stock` :an'dr properly cleanedA foranother'user. Thus, once an adjustmenti'is made ,for aparticular user it: can remainI over ana indefinite period of. time.

Inasmuchas the circular'head-:band and'lthe'headlmount in. generalis 'worn at `different* angles'by diflerentfsopen` ators, it is, essential thatthis.v relationship between `the shield andthe headL mountbeiadjustablertoia particular user sothat the'viewingiwindow'ofthe shieldwillalways fall directlyy before his eyes."

Frequently, when a Welder is working at great heights on` steelf construction work or. otherwise: working Vso that both handsvr are occupied, he brings the .welding :shield into operative position; by simply movingV his head downward and utilizing the force of inertia to bring. the;slii'eld"id'own.

The presenrinventionpermits this type of'useto great advantage since it always stops thelshield4 at the' exact point with relation to the head mount and does not require adjustment by the hands of the Welder after it comes down. t

Briey, the ,invention consists of a bracket. which .is

fastened to the side ofthe shield upwardlythereoflaround the ear location and means on the bracket whichlwill project at varying distances behind" the shield' and'irlt'o the shield into the path of a portion of the head mount to locate it in a definite manner with relation to the shield as it approaches the operating position.

Patented Aug. 6, 1957 frvice I't'isl anl'object of th'einvention to'provide a relatively inexpensive'adjusting mechanism which can be applied to the shieldleither'by lthe original manufacturer or by tlieuserandn which-'may' be readily adjusted tothe particularl needs' without intricate instructions.

vOther VAobjects of the invention and details of operation will be apparentV inethe following description and claims.

Drawings accompany the specification, and the various viewsrthereof maybebriefly described as:

Figure 11,' a rear view of a welding mask showing the locator in place;

Figure 2, a sideview of the weldingmask showing in dotted lines the shield in out-of-the-way position.

Figure 3,` a sectional view on line 3-3 of Figure 1.

Figure 4, a'perspective view showing one embodiment ofE the device as illustrated in Figures 1 to 3.

Figure 5,' a-view showing a modified4 construction.

AFigure 6, asectional view on line 6 6 of Figure 5.

Fgure7, a'perspe'ctive view of the bracket plate shown in Figures 5 and6.`

Figure 8, asecond modified construction.

Figure 9, a-sectional view on-line 9-9` ofA FigureV 8.

Figurel 101 a perspective view` of the holding plate shownineFiguresS` and 9; Y

Figure l1, a third modified construction viewed from theoutsideofthe--welders shield:

Figure l2, a'V fourthl modification in perspective.

Figure-13'; a sectional:v view taken' at the' head' mount Contact point of Figure ll' illustrating the relationship between the-locator andthehead mount;

Referringtothe drawings, a` typical welders: shield or mask is' shown in Figuresl and 2 having a semicylindrical body portion-20 and` a curved bottom and top portion 22 and 24 respectively;

In the mai`n=bodyportion is a window frame 26 having therein a transparentglass pane 28 colored to protect the'eyes of the-welderagainsty glare, A head mount .for the shieldconsists of'an adjustable head band 30 adapted to'lie more or less in a` horizontal plane around the welders head, and connecting the mid-portions' of this band is an arched member 32" which willI rest on the top of'f'a- Welders' head to support some of the load.v

The head mount is connected to the shield by curved straps" 36 havingend portions 38 and 4t), respectively, lying liat againstthe sides of the shield at the upper rear edge thereof'. Transxingthe sides of the shield and the ends 38 and40 are threaded screws 42, on the end of which are-threaded spring holders 44'.' Surroundingthe shanks of screws 42 between members 38 and 40' and the spring holders '44 arecoil springs 46.

Withy this arrangementA the `frictional relationship between the shield and the head mount may be controlled by rotating the screws 42. The members 36 are fastened to the arch member 32 by suitableflush rivets'.

With thi'sarrangement 'the shield may be worn in, a dottedllinepositionv assh'own in' Figure 2 when the lop-` erator isnot welding; and if he' has adjusted'the coil springs 46l to'hissatisfaction, he can, witha nod of the head, bringthe-shield' down in front of his eyes.

A control is provided for the construction above described to bring `the device' to operating position as it c-omes down.- In Figure* 3',V which is a sectional view of Figure` l; thisfcontrollis shown as an L-shapedjbracket 50'screwed or riveted'to the side of the shield just above the=screw location-'42. This bracket Vhas an L.member SZfthrough which is threaded a shaft 54 having a head 56.

A locking nutV 58locates the shaftl54 positively. The head 56 is so positionedthat` it falls in the .path ofthe member-'36,'A moving relative to the-shield, and contacts the member 36 to stop its movement, depending on the position of adjustment of the shaft 54. This arrangement is best shown in perspective in Figure 4.

In Figures 5, 6 and 7 a modified construction is shown which is directly attachable to the shield by use of the adjusting bolt 60 which passes through the wall of the shield. The attachment consists of a plate'62 having a downward extending apertured ear 64 and an 'L-shaped angle portion 66 with a threaded hole therein. i y

At the other end of the plate from the L member 66 is a small tab 68 extending at right angles to the plate intended to project into a hole in the wall of the shield to locate the plate. The head of the bolt 60 will clamp the device on the wall of the shield and a threaded member 70 with head 72 extends into the shield to contact the member 36. A small thumb screw 74 can lock the screw shaft 70 in place. This member operates in the same way as described in connection with the embodiment of Figure 1. It is readily attachable by an individual operator. In Figures 8, 9 and 10 a second modification is shown consisting of a plate 82 having a hole 84 to cooperate with the bolt 60 in the same manner as described in connection with Figure 6. A tab 86 prevents rotation of the plate, and an arcuate slot 88 having an enlarged end 90 is provided at the rear of the plate 82.

An L-shaped member 92 has a shank 94 passing through the slot 88, the shank 94 being almost square in cross section so that it will not rotate when positioned in the slot 88. The corners of the shank 94 are rounded and threaded and a nut 96 is positioned on the shaft 94 on one side of plate 82, while a thumb screw 98 locks the shaft in place, yleaving the angled end 100 to contact the member 36 in a variety of positions to make the adjustment for the control member.

In Figure ll a third modification is shown. This consists of a mounting plate 110 held in position on the side of the shield by the usual adjusting bolts 60 and provided at the upper portion with a slide or track 112 having at least one side member 114.

Mounted on this slide or track is a U-shaped member 116 having one extended leg 118 riding in the track 112 and provided with an elongate slot 120. A screw or bolt 122 passes through the slot 120 and through a threaded aperture in the plate 110 and into a hole in the shield wall 20. The leg 118 is thus adjustably positionable in the slide 112 in a variety of positions.

The other leg 124 of the U-shaped member extends behind the shield and forward into the shield so that it can serve as a locator for the member 36 as described in connection with the other embodiments.

In Figure 12 a similar device is shown with a small track bracket 130 held to the shield plate 20 by flush rivets 132. A screw 134 serves to lock the leg 118 in position. Y

In Figure 13 the relationship between the leg member 124 of Figure 1l and the head band member 36 is shown, the end of the member 124 being notched to serve as a positive recess for the member 36.

l. A welders mask protecting the eyes, face and neck of a Welder which comprises a shield portion, a head support harness, and a connecting band therebetween, means rotatably mounting the shield portion on the connecting band to permit shifting from an operative position before the face to a clear position above the head, means on the shield portion co-operating with a portion of the band to limit the movement from one position tothe other, said means comprising a slide bracket aixed to the shield at the upper portion of one side thereof, means slidably fastened to said bracket projecting to the rear of and into the shield to lie in the path of movement of said band, and means to lock the bracket and the lastnamed means in a fixed position.

2. A device as defined in claim 1 in whichl the bracket tact the mounting band.

e means comprises a plate having a track formation therein axed to a side of the shield and the adjustable means comprises a U-shaped member having one leg longer than the other and slidable in said bracket track, the other leg projecting behind and into the shield to meet a portion of the connecting band as the shield moves from the clear position tothe operative position, and releasable means fastening said bracket and said U-shaped member together in a plurality of adjustable positions.

3. In a welders mask having a shield part and a head support harness, an arcuate mounting band, and a pivot screw or bolt passing through said shield and mounting band on opposite sides of the shield to pivotally connect the two whereby the shield part may be moved from an inoperative position above the head to an operative position before the face of the Welder, a means to position the shield relative to the mounting band in the operative position comprising an apertured bracket'plate held in place by at least one of said pivot bolts or screws, and means extending from said bracket part to a point within the shield to contact directly the mounting band, said last means being shiftable to a plurality of positions to regulate the position of the shield relative to the face and eyes of the Welder.

4. A device as dened in claim 3 in which the adjustable means mounted on the bracket comprises an L- shaped pin member threaded at one end mounted in a slot in said bracket, the threaded portion of said pin member passing through said slot, and means threaded on said pin to locate said L-shaped pin member in a plurality of positions relative to said bracket, said pin member extending toward the inside of said shield member to con- 5. A device as defined in claim 3 in which said apertured bracket plate lies on one outside face of the shield adjacent the pivot point between the shield and the mountinglband, means projecting from the plate at one end and insertable into a locating aperture in the shield to restrict rotation of the plate on the shield, and means at the other end of the plate extending behind the shield, and an adjustable projectable member mounted on said last means to project into the shield to contact the mounting band as it approaches the operative position.

6. In a welders mask having a shield part including sidewalls and a head support harness, means secured to said head support harness and forming arcuate mounting bands projecting'toward said sidewalls, and a pivot screw or bolt passing through the sidewalls of said shield and mounting bands on opposite sides of the shield to pivotally connect the two whereby the shield part may be moved from an inoperative position above the head to an operative position before the face of a Welder, a means to position the shield relative to the mounting bands in the opl erative position comprising means forming a bracket held in place on a sidewall of said shield, and means extending from said bracket to a point within the shield spaced radially from'said pivot so that said extending means rotates around said pivot relatively to one of said mounting bands with said shield, said extending means being positioned to contact directly said one mounting band, said extending means being shiftable to a plurality of positions to contact said one mounting band in different rotative positions of said shield relatively to said one mounting band, whereby to regulate the position of the shield relative to the face and eyes of the Welder.

References Cited in the tile of this patent UNITED STATES PATENTS 

